Hook



FIG. 1 is a side, front, perspective view of the hook;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is an environmental view thereof with the broken line showing of bananas being for illustrative purposes only and forming no part of the claimed design. 

The ornamental design for a hook, as shown and described. 